He then extended the lead to 2-0 at 6:10, kicking the rebound of Taylor Hall's initial shot to his stick and shooting into an open net.
"He's such a dominant player, I think he holds himself to a high standard," Marchand said of Pastrnak. "He wants to be a difference-maker every night. He's such a special talent. We want to see him do well. It's great to see him have a game like tonight. He steps up in big situations all the time."
Marchand scored 26 seconds into the second period to make it 3-0. He redirected a slap pass from Mike Reilly past Vasilevskiy's glove near the right post.
"It feels good, but I don't think they played their best game tonight," Marchand said. "We've played them plenty in the past, we know when they're on and when they're not. So we have to take it as a grain of salt, but it's definitely something we can continue to build on. We've been a lot better recently. Ever since the Christmas break we've been playing really good hockey."
Anton Blidh pushed the lead to 4-0 at 14:54 of the second, scoring short side from the left circle after Oskar Steen outmuscled Cal Foote for a loose puck.
Palat scored 24 seconds into the third period to make it 4-1, converting on a one-timer after Erik Cernak knocked him the puck with one hand on his stick.
"It wasn't ideal to allow the early goal," Cernak said. "This was not our night with winning 50-50 battles. We weren't sharp enough in our zone."